Template render error: (unknown path)
  Template render error: (unknown path)
  Template render error: (unknown path)
  Template render error: (unknown path)
  Error: slugify: string argument expected
    at Object._prettifyError (/opt/build/repo/node_modules/nunjucks/src/lib.js:36:11)
    at /opt/build/repo/node_modules/nunjucks/src/environment.js:561:19
    at eval (eval at _compile (/opt/build/repo/node_modules/nunjucks/src/environment.js:631:18), :36:12)
    at entity.render.then.catch.err (/opt/build/repo/node_modules/@frctl/nunjucks/src/extensions/render.js:47:21)